According to the article “Mean body weight, height, waist circumference, and body mass index among adults: United States, 1999 – 2000 through 2015 – 2016” published in National Health Statistics Report (Fryar, 2018), the estimated mean weight of an adult male in the United States in 2015 – 2016 was 197.8. Suppose the distribution of weights of adult males is a mound shaped distribution with mean ???? = 200 and standard deviation ???? = 25. Determine

(a) the weight range that approximately 95% of the adult males in the United States in 2015 – 2016 fall in.

(b) the coefficient of variation for the weights of adult males in the United States in 2015 – 2016.